Remove carriage return in Unix

Question

What is the simplest way to remove all the carriage returns \r from a file in Unix?

Answer 1

For UNIX... I've noticed dos2unix removed Unicode headers form my UTF-8 file. Under git bash (Windows), the following script seems to work nicely. It uses sed. Note it only removes carriage-returns at the ends of lines, and preserves Unicode headers.

#!/bin/bash

inOutFile="$1"
backupFile="${inOutFile}~"
mv --verbose "$inOutFile" "$backupFile"
sed -e 's/\015$//g' <"$backupFile" >"$inOutFile"

Answer 2

Someone else recommend dos2unix and I strongly recommend it as well. I'm just providing more details.

If installed, jump to the next step. If not already installed, I would recommend installing it via yum like:

yum install dos2unix

Then you can use it like:

dos2unix fileIWantToRemoveWindowsReturnsFrom.txt

Answer 3

you can simply do this :

$ echo $(cat input) > output

Answer 4

Here is the thing,

%0d is the carriage return character. To make it compatabile with Unix. We need to use the below command.

dos2unix fileName.extension fileName.extension